EP0825090B1 - Structure de volant de direction pour véhicule à moteur - Google Patents

Structure de volant de direction pour véhicule à moteur Download PDF

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Publication number
EP0825090B1
EP0825090B1 EP97112811A EP97112811A EP0825090B1 EP 0825090 B1 EP0825090 B1 EP 0825090B1 EP 97112811 A EP97112811 A EP 97112811A EP 97112811 A EP97112811 A EP 97112811A EP 0825090 B1 EP0825090 B1 EP 0825090B1
Authority
EP
European Patent Office
Prior art keywords
steering wheel
legs
reshaping
designed
armature according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97112811A
Other languages
German (de)
English (en)
Other versions
EP0825090A2 (fr
EP0825090A3 (fr
Inventor
Klaus Drefahl
Martin Kreuzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Automotive Safety Systems Germany GmbH
Original Assignee
TRW Automotive Safety Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Automotive Safety Systems GmbH filed Critical TRW Automotive Safety Systems GmbH
Publication of EP0825090A2 publication Critical patent/EP0825090A2/fr
Publication of EP0825090A3 publication Critical patent/EP0825090A3/fr
Application granted granted Critical
Publication of EP0825090B1 publication Critical patent/EP0825090B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/11—Hand wheels incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20732—Handles
    • Y10T74/20834—Hand wheels

Definitions

  • the invention relates to a steering wheel skeleton for motor vehicles, in which the hub, All or part of the spokes and wreath consist of a sheet metal section, with a U- or L-shaped cross-section by folding the edges one extending substantially perpendicular to the steering wheel axis Base area and essentially parallel to the steering wheel axis has received extending leg areas, such as from the US-A-5 490 435 is known.
  • Such steering wheel skeletons are used to manufacture steering wheels for Motor vehicles used. They have the advantage of being with everyone Components made in one piece from a simple sheet metal section can be achieved by chipless forming operations and by Punching or cutting gets its final shape, whereby different requirements for the structural strength of the individual Components by appropriate dimensioning of the U- or L-shaped Cross sections can be taken into account.
  • steering wheels Another requirement of steering wheels is that they have one if possible high form-change work should start when the vehicle driver crashes into the steering wheel.
  • an airbag By installing an airbag the risk of injury is already greatly reduced: in addition, a optimally designed steering wheel still significantly to reduce the accidental Contribute to injuries.
  • the invention proposes that at seen the legs in the longitudinal direction of the generic steering wheel skeleton are shaped in such a wave shape that the leg ends close to the base experience practically no deviation from the level of origin, the free, legs away from the base have the maximum deviation and the Deviation over the leg height is steadily increasing.
  • the steering wheel rim is relatively rigid compared to that on the Steering wheel column attached steering wheel hub bent downwards, i.e. that on the tensile forces occur on the side of the steering wheel facing the passenger handlebar.
  • the leg ends of the steering wheel skeleton, which are corrugated according to the invention, are placed on this side, the wavy leg ends are under the influence of the Traction forces more or less stretched.
  • the steering wheel skeleton according to the invention among such Loads much more flexible and therefore to absorb Shape work much more suitable. With increasing stretch the wavy leg ends increases the resistance to deformation, whereby the impact movement is increasingly braked, which in With regard to the avoidance of negative acceleration peaks and that Springback behavior is desirable.
  • the steering wheel skeleton is also in this arrangement "softer" than a steering wheel skeleton with non-wavy leg ends. in the individual can so a generic steering wheel skeleton through curl of the leg ends according to the invention to a wide variety Requirements are adjusted, of course the normal Operation required stiffness must be maintained.
  • the initial strain resistance can vary over the extent of the Corrugation, i.e. due to the solidification of the sheet metal material can be set.
  • Fig. 1 shows a part of a steering wheel skeleton 1, which consists of a sheet metal section through punching, folding and other non-cutting shaping steps was formed.
  • the steering wheel skeleton 1 consists in one piece of a hub 2, Spokes 3 and a wreath 4, being U-shaped or L-shaped by folding Cross sections were formed, with a perpendicular to the steering wheel axis extending base region 5, which in the plane of the sheet metal section in its Initial form, and with itself parallel to the steering wheel axis, i.e. in the Legs 6, 7, 8 extending substantially perpendicular to the base region 5.
  • the curl of the leg ends can also have a different shape, for example, from alternating circular arc sections exist or be made zigzag. Together with the others in the possibilities mentioned in the subclaims can be a Train a wide variety of adaptable steering wheel skeletons. whereby it can easily be determined by means of simple experiments, as in a Dimensional strength for the normal load a maximum deformation work can be implemented in the event of an overloading of the steering wheel skeleton. In addition, the one that inevitably occurs during forming Include work hardening as a design parameter, which in turn - if required - completely or partially reversed by heat treatment can be made.
  • the curl of the leg ends according to the invention in one Generic steering wheel skeleton offers for itself and in connection with the further material and shaping properties the possibility of all demands regarding normal basic strength and absorption from maximum deformation work in the event of an accident-related overload fulfill.
  • practically all areas of the steering wheel skeleton can the shaping work is included.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Claims (10)

  1. Armature de volant (1) pour véhicules automobiles, dans lequel le moyeu (2), les rayons (3) et la couronne (4) sont réalisés entièrement ou partiellement à partir d'une pièce de tôle qui a obtenu, par pliage des bords, une section en forme de U ou de L avec une zone de base (5) s'étendant sensiblement perpendiculairement à l'axe du volant et des zones de branches (6, 7, 8) s'étendant sensiblement parallèlement à l'axe du volant, caractérisée en ce que les branches (6, 7, 8), vues en direction longitudinale, sont façonnées en forme ondulée de telle sorte que les extrémités de branches (9) proches de la base ne subissent pratiquement aucun écart par rapport au plan initial, que les extrémités de branches libres (10) éloignées de la base présentent l'écart maximum et que l'écart est réalisé en augmentation constante avec la hauteur des branches.
  2. Armature de volant selon la revendication 1, caractérisée en ce que le façonnage des branches (6, 7, 8), vu en direction longitudinale, est réalisé en forme sinusoïdale.
  3. Armature de volant selon la revendication 1, caractérisée en ce que le façonnage des branches (6, 7, 8), vu en direction longitudinale, est réalisé en tant que succession de segments d'arc de cercle.
  4. Armature de volant selon la revendication 1, caractérisée en ce que le façonnage des branches (6, 7, 8), vu en direction longitudinale, est réalisé en forme arrondie et en zigzag.
  5. Armature de volant selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le façonnage des branches (6, 7, 8), vu en direction longitudinale, est réalisé avec un écart de grandeurs différentes, à partir du plan initial.
  6. Armature de volant selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le façonnage des branches (6, 7, 8), vu en direction longitudinale, est réalisé avec une période de grandeurs différentes
  7. Armature de volant selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le façonnage a permis de produire un écrouissage sélectif du matériau dans l'armature dans son ensemble ou dans des zones partielles.
  8. Armature de volant selon la revendication 8, caractérisée en ce que l'écrouissage est annulé par zone au moyen d'un traitement thermique sélectif.
  9. Armature de volant selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le façonnage, du point de vue de son étendue et de son agencement, est réalisé de telle sorte que le volant, dans le cas d'une déformation due à une collision, peut dissiper un maximum de travail de déformation sans grande charge de pointe.
  10. Armature de volant selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les façonnages sont adaptés au matériau de départ choisi.
EP97112811A 1996-08-10 1997-07-25 Structure de volant de direction pour véhicule à moteur Expired - Lifetime EP0825090B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19632317 1996-08-10
DE19632317A DE19632317C1 (de) 1996-08-10 1996-08-10 Lenkradskelett für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0825090A2 EP0825090A2 (fr) 1998-02-25
EP0825090A3 EP0825090A3 (fr) 1999-06-09
EP0825090B1 true EP0825090B1 (fr) 2001-07-11

Family

ID=7802318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112811A Expired - Lifetime EP0825090B1 (fr) 1996-08-10 1997-07-25 Structure de volant de direction pour véhicule à moteur

Country Status (9)

Country Link
US (1) US5957003A (fr)
EP (1) EP0825090B1 (fr)
JP (1) JP3066959B2 (fr)
KR (1) KR100303430B1 (fr)
CN (1) CN1070435C (fr)
BR (1) BR9704311A (fr)
CA (1) CA2211432C (fr)
DE (2) DE19632317C1 (fr)
ES (1) ES2160875T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29820305U1 (de) 1998-11-12 1999-01-14 Trw Automotive Safety Sys Gmbh Lenkrad mit metallischem Skelett
GB2351481A (en) * 1999-06-30 2001-01-03 Brian Jonathan Rosenberg Vehicle steering wheel anti-theft device
DE10123520C1 (de) * 2001-05-15 2002-10-10 Trw Automotive Safety Sys Gmbh Verfahren zum Herstellen eines Lenkrades sowie Lenkrad
DE10215684A1 (de) * 2002-04-10 2003-10-30 Bayerische Motoren Werke Ag Lenkrad-Skelett eines Fahrzeug-Lenkrads
AU2003237442A1 (en) * 2002-06-26 2004-01-19 Ctb, Inc. Poultry feeder
DE102004015529B4 (de) * 2004-03-30 2009-08-27 Key Safety Systems, Inc., Sterling Heights Lenkrad für ein Fahrzeug
DE202004006155U1 (de) * 2004-04-19 2004-08-26 Trw Automotive Safety Systems Gmbh Fahrzeuglenkrad

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE352511A (fr) * 1929-06-05
US2014633A (en) * 1931-03-31 1935-09-17 Pannecoucke Gregoire Joscph Reenforced wheel construction
US3714844A (en) * 1970-01-27 1973-02-06 Masakazu Inagaki Steering wheel consisting of a light frame integrally moulding, processed from a flat plate
JPS516420A (fr) * 1974-07-05 1976-01-20 Hitachi Ltd
SU887330A1 (ru) * 1980-01-14 1981-12-07 Волжское объединение по производству легковых автомобилей Рулевое колесо транспортного средства
JPS61122971U (fr) * 1985-01-22 1986-08-02
JPH0746000B2 (ja) * 1987-11-09 1995-05-17 松下冷機株式会社 冷蔵庫等の製氷装置
DE3838595A1 (de) * 1988-11-15 1990-05-17 Kolbenschmidt Ag Bauelement zur absorption von energie
JPH0456577A (ja) * 1990-06-26 1992-02-24 Matsushita Electric Ind Co Ltd ディジタル映像信号記録及び再生装置
CN2140329Y (zh) * 1992-06-11 1993-08-18 张火根 安全方向盘
US5490435A (en) * 1994-08-25 1996-02-13 Chrysler Corporation Energy absorbing steering wheel

Also Published As

Publication number Publication date
DE19632317C1 (de) 1998-01-29
BR9704311A (pt) 1999-06-15
EP0825090A2 (fr) 1998-02-25
KR100303430B1 (ko) 2001-11-22
US5957003A (en) 1999-09-28
CA2211432C (fr) 2001-10-02
JPH10114270A (ja) 1998-05-06
EP0825090A3 (fr) 1999-06-09
CN1070435C (zh) 2001-09-05
ES2160875T3 (es) 2001-11-16
CA2211432A1 (fr) 1998-02-10
DE59703999D1 (de) 2001-08-16
KR19980018379A (ko) 1998-06-05
JP3066959B2 (ja) 2000-07-17
CN1176200A (zh) 1998-03-18

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